| 摘要 |
An electronic device has a first terminal and a second terminal and includes a control unit, a silicon controlled rectifier (SCR), and a switch unit. The control unit detects a positive pulse signal from the first terminal of the electronic device. When the positive pulse signal is detected by the control unit, the control unit generates a reset pulse after a predetermined time. The SCR has a first anode terminal, a second anode terminal, a first cathode terminal, and a second cathode terminal. The switch unit provides a plurality of transmission paths. When the switch unit receives the reset pulse, the switch unit cuts off the transmission paths, so that the first anode terminal, the second anode terminal, the first cathode terminal, and the second cathode terminal of the SCR are floating.
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